343947852 has 72 divisors (see below), whose sum is σ = 919481472. Its totient is φ = 108230400.

The previous prime is 343947839. The next prime is 343947869. The reversal of 343947852 is 258749343.

It is a junction number, because it is equal to n+sod(n) for n = 343947798 and 343947807.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41998 + ... + 49514.

It is an arithmetic number, because the mean of its divisors is an integer number (12770576).

Almost surely, 2^343947852 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 343947852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (459740736).

343947852 is an abundant number, since it is smaller than the sum of its proper divisors (575533620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

343947852 is a wasteful number, since it uses less digits than its factorization.

343947852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7599 (or 7594 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 343947852 is about 18545.8311218451. The cubic root of 343947852 is about 700.6442042412.

The spelling of 343947852 in words is "three hundred forty-three million, nine hundred forty-seven thousand, eight hundred fifty-two".